nfc.h 4.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-or-later */
  2. /*
  3. * Copyright (C) 2011 Instituto Nokia de Tecnologia
  4. *
  5. * Authors:
  6. * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
  7. * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
  8. */
  9. #ifndef __LOCAL_NFC_H
  10. #define __LOCAL_NFC_H
  11. #include <net/nfc/nfc.h>
  12. #include <net/sock.h>
  13. #define NFC_TARGET_MODE_IDLE 0
  14. #define NFC_TARGET_MODE_SLEEP 1
  15. struct nfc_protocol {
  16. int id;
  17. struct proto *proto;
  18. struct module *owner;
  19. int (*create)(struct net *net, struct socket *sock,
  20. const struct nfc_protocol *nfc_proto, int kern);
  21. };
  22. struct nfc_rawsock {
  23. struct sock sk;
  24. struct nfc_dev *dev;
  25. u32 target_idx;
  26. struct work_struct tx_work;
  27. bool tx_work_scheduled;
  28. };
  29. struct nfc_sock_list {
  30. struct hlist_head head;
  31. rwlock_t lock;
  32. };
  33. #define nfc_rawsock(sk) ((struct nfc_rawsock *) sk)
  34. #define to_rawsock_sk(_tx_work) \
  35. ((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work))
  36. struct nfc_llcp_sdp_tlv;
  37. void nfc_llcp_mac_is_down(struct nfc_dev *dev);
  38. void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
  39. u8 comm_mode, u8 rf_mode);
  40. int nfc_llcp_register_device(struct nfc_dev *dev);
  41. void nfc_llcp_unregister_device(struct nfc_dev *dev);
  42. int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
  43. u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
  44. int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
  45. struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
  46. int __init nfc_llcp_init(void);
  47. void nfc_llcp_exit(void);
  48. void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
  49. void nfc_llcp_free_sdp_tlv_list(struct hlist_head *head);
  50. int __init rawsock_init(void);
  51. void rawsock_exit(void);
  52. int __init af_nfc_init(void);
  53. void af_nfc_exit(void);
  54. int nfc_proto_register(const struct nfc_protocol *nfc_proto);
  55. void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
  56. extern int nfc_devlist_generation;
  57. extern struct mutex nfc_devlist_mutex;
  58. int __init nfc_genl_init(void);
  59. void nfc_genl_exit(void);
  60. void nfc_genl_data_init(struct nfc_genl_data *genl_data);
  61. void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
  62. int nfc_genl_targets_found(struct nfc_dev *dev);
  63. int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx);
  64. int nfc_genl_device_added(struct nfc_dev *dev);
  65. int nfc_genl_device_removed(struct nfc_dev *dev);
  66. int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
  67. u8 comm_mode, u8 rf_mode);
  68. int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
  69. int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
  70. int nfc_genl_tm_deactivated(struct nfc_dev *dev);
  71. int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
  72. int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
  73. int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
  74. int nfc_genl_se_transaction(struct nfc_dev *dev, u8 se_idx,
  75. struct nfc_evt_transaction *evt_transaction);
  76. int nfc_genl_se_connectivity(struct nfc_dev *dev, u8 se_idx);
  77. struct nfc_dev *nfc_get_device(unsigned int idx);
  78. static inline void nfc_put_device(struct nfc_dev *dev)
  79. {
  80. put_device(&dev->dev);
  81. }
  82. static inline void nfc_device_iter_init(struct class_dev_iter *iter)
  83. {
  84. class_dev_iter_init(iter, &nfc_class, NULL, NULL);
  85. }
  86. static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
  87. {
  88. struct device *d = class_dev_iter_next(iter);
  89. if (!d)
  90. return NULL;
  91. return to_nfc_dev(d);
  92. }
  93. static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
  94. {
  95. class_dev_iter_exit(iter);
  96. }
  97. int nfc_fw_download(struct nfc_dev *dev, const char *firmware_name);
  98. int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
  99. u32 result);
  100. int nfc_dev_up(struct nfc_dev *dev);
  101. int nfc_dev_down(struct nfc_dev *dev);
  102. int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
  103. int nfc_stop_poll(struct nfc_dev *dev);
  104. int nfc_dep_link_up(struct nfc_dev *dev, int target_idx, u8 comm_mode);
  105. int nfc_dep_link_down(struct nfc_dev *dev);
  106. int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
  107. int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx, u8 mode);
  108. int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
  109. data_exchange_cb_t cb, void *cb_context);
  110. int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
  111. int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
  112. #endif /* __LOCAL_NFC_H */